11 inch brakes

I am interested installing 11 inch brakes on my 1957 cj5. What plated would fit. I was told I needed early 70s wagoneer plates and drums.

 

I got mine from a 76 postal jeep.......really good upgrade for an early jeep

 

I have read that 62-72 wagoneers will fit

 

72-75 cj

 

There were lots of cars with the 11" x 2" Bendix brakes. Not all of these will bolt on, but you can modify the plates to make them work. What you can use depends on how much machining you are able and willing to do. Machining usually consists of cutting the center hole larger, and drilling now mounting holes.

 

I used the brakes from a '76 CJ. The front's (D30) fit as is, had to drill 1 new hole for the rears (AMC20)

 

how well does the drum fit over the rear amc 20 backing plate?

 

Sorry but you cannot use an AMC 20 backing plate on a Dana Spicer axle. The backing plate offset is way wrong. You can use the 30 and 44 drums and most of the hardware and wheel cylinders on a 20 however and vice verse. The axle flange and housing end offset is different. They can use the same drums because the difference is made up with the backing plate offset. Believe me, if all it took was redrilling one or two holes the company I work for that specializes in Jeep brake conversions would not have been scrapping 20 backing plates for the last 20 years......


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1st generation bronco front brake backing plates (1966-75) are what i used (dana 30 can't use the rears as they used 9inch axles). did have to re drill two holes in the rear ones for the flanged axle. cost me about $50 each.

 

i used 1970 wagoneer backers. this time i went with the disk setup. the price was the same. the drums worked great though.

 

Shipping seems to kill the deal. I can convince the old lady to let me get upgraded brakes, but that extra $50 for shipping seems to push it into "too much" land. Someday I'll be able to pay the bills and fix the jeep...

 

Since 2 backing plates fit into a large flat rate box, I would think that you could ship the backing plates and drums in 2 large flat rate boxes reducing the shipping to about $30 for the set.

Sent from my LS670

 

Best to buy backing plates and necessary hardware only then buy everything else local usually


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I have read over all the inof that I can find. I have one question whether I shound remove the bracket that where the rubber brake line mates with the steel line. I know the current steel line will be too short. What about bending up a longer line? If I didnt remove the bracket, I am afraid the longer hose will hit it. Any ideas?

 

I'm assuming this is for a 25 front? I'd remove the bracket and short metal S line and run a rubber hose directly from the wheel cylinder to the metal line at the frame.


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